ABRASION RESISTANCE EN ISO 10545-7
Abrasion resistance is the capacity of the surface to resist to the wear caused by foot traffic or by mechanical equipment . The wear action is strictly linked to the material carried on to the surface (water, sand, mud, etc.) and classified in five categories depending on the areas they are used in:
For glazed tiles the PEI test is used to see how the surface reacts to the circular movements made by the machine.
PEI I - Light Traffic
Tiles in this group are usually used for residential bathroom flooring.
PEI II - Moderate Traffic
Group 2 tiles can be used on residential interior floors, but should not be used in areas such as kitchens, entry ways and stairs that are subject to tracked in or spilled abrasives.
PEI III - Moderate to Heavy Traffic
These tiles can be used for any residential or light commercial application. The only place that they are not recommended is in heavy traffic commercial areas, like banks and restaurants.
PEI IV - Heavy Traffic
Tiles that qualify for Group 4 can be used for any residential and nearly all commercial applications. These tiles are durable enough to be used in such heavy traffic areas as shopping malls.
PEI V - Ultra Heavy Traffic
Group 5 tiles are the most durable and can be used for all residential, commercial, and even industrial applications where extreme durability is a must.